but only four percent of the nation's self-employed.
Increasing the number of minority-owned firms was seen as a way to remedy this problem
所以只要增加了，无论长多少都行，
(B) An organism's reaction to being placed in an environment to which it is not well adapted can sometimes illustrate the problems that have been solved by the adaptations of organisms indigenous to that environment.
把水蛇放到地上，他们就不适应了，暴露了这个问题（重力的问题，已经被对水的适应性解决）
见这里The problem confronting terrestrial snakes is best illustrated by what happens to sea snakes when removed from their supportive medium
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发表于 2007-9-28 00:16:00
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